CN210340750U - High-viscosity hot melt adhesive film with good weather resistance and FFC wire rod using same - Google Patents
High-viscosity hot melt adhesive film with good weather resistance and FFC wire rod using same Download PDFInfo
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- CN210340750U CN210340750U CN201921220474.1U CN201921220474U CN210340750U CN 210340750 U CN210340750 U CN 210340750U CN 201921220474 U CN201921220474 U CN 201921220474U CN 210340750 U CN210340750 U CN 210340750U
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Abstract
The utility model discloses a high viscous force hot melt adhesive membrane that weatherability is good, including PET film, precoating, resistant time glue film, high viscous metal power glue film and polyester film, the upper surface coating of PET film has the precoating, the upper surface coating of precoating has resistant time glue film, resistant time glue film's upper surface coating has high viscous metal power glue film, the upper surface coating of high viscous metal power glue film has polyester film. The hot melt adhesive layer with weather resistance and the hot melt adhesive layer with high viscous metal force are superposed, the existing defects are solved by changing the hierarchical structure of the hot melt adhesive film, the hot melt adhesive film has good weather resistance and high viscous metal force, and the hot melt adhesive film has simple and reasonable structure and low cost.
Description
Technical Field
The utility model relates to a hot melt adhesive membrane field especially relates to a high viscous force hot melt adhesive membrane that weatherability is good and use its FFC wire rod.
Background
The flexible flat cable (FFC, English full name: FlexibleFlatCable) is a novel data cable formed by laminating a PET insulating material and an extremely thin tinned flat copper wire through a high-tech automatic equipment production line, and has the advantages of softness, random bending and folding, thin thickness, small volume, simple connection, convenience in disassembly, easiness in solving electromagnetic shielding and the like. The existing FFC insulating film has a three-layer structure comprising a PET (polyethylene terephthalate chemical formula (ClOH804) n) film layer, a pre-coating ink layer and a conventional hot melt adhesive layer.
In the hot melt adhesive layer, weather resistance and viscous metal power are two performances that weaken each other, and market ten minutes demand possesses weather resistance and the high resistant hot melt adhesive layer of viscous metal power simultaneously, and the FFC wire rod that has this hot melt adhesive layer can improve weatherability, increase of service life. The scheme of solving the weather resistance problems of high temperature resistance, yellowing resistance, moisture resistance, salt mist resistance and the like and having high viscous metal force at present is realized by using resin with high weather resistance to carry out formula blending, but the realization method can bring about the problems of cost rise, no over-high pressure when producing a laminated conductor, only reaching the common requirement of flame retardant capability, easy glue overflow and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high viscous force hot melt adhesive membrane that weatherability is good possesses good weatherability and high viscous metal power simultaneously, and simple structure is reasonable, and is with low costs to overcome the weak point among the prior art.
Another object of the utility model is to provide an use above-mentioned hot melt adhesive membrane's FFC wire rod, it possesses good weatherability, can effectively prolong the life of FFC wire rod.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a high viscous force hot melt adhesive membrane that weatherability is good, includes PET film, precoating, resistant time glue film, high viscous metal power glue film and polyester film, the upper surface coating of PET film has precoating, the upper surface coating of precoating has resistant time glue film, resistant time glue film's upper surface coating has high viscous metal power glue film, the upper surface coating of high viscous metal power glue film has polyester film.
Preferably, the PET film is a high-temperature-resistant PET film, and the service temperature range of the high-temperature-resistant PET film is-30-200 ℃.
Preferably, the thickness of the precoat layer ranges from 0.5 to 3 μm.
Preferably, the thickness range of the weather-resistant glue layer is 15-32 μm.
Preferably, the thickness range of the high-viscosity metal adhesive layer is 4-8 μm.
Preferably, the thickness range of the PET film is 12-40 μm.
Preferably, the thickness of the polyester film ranges from 12 to 40 μm.
Preferably, the thickness of the weather-resistant glue layer is 25 μm.
Preferably, the thickness of the high-viscosity metal adhesive layer is 6 μm.
The FFC wire material using the high-viscosity hot melt adhesive film with good weather resistance is characterized in that: the hot melt adhesive comprises an FFC wire and a high-viscosity hot melt adhesive film with good weather resistance, wherein after the polyester film is peeled off, the high-viscosity metal adhesive layer is adhered to the outer surface of the FFC wire.
The utility model has the advantages that: the hot melt adhesive layer with weather resistance and the hot melt adhesive layer with high viscous metal force are superposed, the existing defects are solved by changing the hierarchical structure of the hot melt adhesive film, the hot melt adhesive film has good weather resistance and high viscous metal force, and the hot melt adhesive film has simple and reasonable structure and low cost.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
Fig. 1 is the structural schematic diagram of the high-viscosity hot-melt adhesive film with good weather resistance of the utility model.
Wherein: a PET film 1; precoat layer 2; a weather-resistant glue layer 3; a high-viscosity metal adhesive layer 4; and a polyester film 5.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The utility model provides a high viscous force hot melt adhesive membrane that weatherability is good, includes PET film 1, precoating 2, resistant glue film 3, high viscous metal power glue film 4 and polyester film 5, the upper surface coating of PET film 1 has precoating 2, the upper surface coating of precoating 2 has resistant glue film 3, the upper surface coating of resistant glue film 3 has high viscous metal power glue film 4, the upper surface coating of high viscous metal power glue film 4 has polyester film 5.
The scheme of solving the weather resistance problems of high temperature resistance, yellowing resistance, moisture resistance, salt mist resistance and the like and having high viscous metal force is realized by using resin with high weather resistance to prepare a formula, but the realization method can cause the problems of increased cost, no over-high pressure when producing a conductor for attaching an FFC wire rod, the flame retardant capability only reaching the common requirement, easy glue overflow and the like.
According to the technical scheme, the existing hot melt adhesive layer with weather resistance and the existing hot melt adhesive layer with high viscous metal force are superposed, and the existing defects are solved by changing the hierarchical structure of the hot melt adhesive film. A high-viscosity hot-melt adhesive film with good weather resistance is shown in figure 1 and comprises a PET film 1, a precoating layer 2, a weather-resistant adhesive layer 3, a high-viscosity metal adhesive layer 4 and a polyester film 5. Precoat 2 coats in the top of PET film 1 for fill the tiny pore in PET film 1 surface, play certain effect of covering to PET film 1, increase the adhesive force of resistant glue film 3 of waiting and PET film 1 simultaneously. The weather-resistant adhesive layer 3 is used for improving the weather resistance of the hot-melt adhesive film, such as high temperature resistance, yellowing resistance, moisture resistance, salt mist resistance and the like, forming a firm powder base layer, and simultaneously enhancing the pressure resistance, the glue overflow resistance and the flame retardant capability. The high-viscosity metal adhesive layer 4 can increase the viscosity metal force of the weather-resistant adhesive layer 3, and can ensure that the viscosity metal force can still meet the product requirement under the environment of high temperature, high pressure, salt mist, high temperature and high humidity. The polyester film 5 is used for protecting the high-viscosity metal adhesive layer 4 from external pollution, keeping the metal adhesive performance and preventing poor back adhesion in the production process of the hot melt adhesive film.
It should be noted that the precoat layer 2, the weather-resistant adhesive layer 3 and the high-viscosity metal adhesive layer 4 can be prepared by blending the existing formula components, and the blending method is a conventional hot melt adhesive layer blending method, which is not described herein again;
further, the PET film 1 is a high-temperature-resistant PET film, and the use temperature range of the high-temperature-resistant PET film is-30-200 ℃.
The high-temperature-resistant PET film has stable fog-like performance and low shrinkage rate, can be continuously used within the temperature range of minus 30-200 ℃, and has wide application range.
Further, the thickness of the precoat layer 2 is in the range of 0.5 to 3 μm.
The thickness range of the precoating layer 2 is 0.5-3 mu m, and when the coating thickness is less than 0.5 mu m, the contribution of the precoating layer 2 to the adhesive force of the weather-resistant adhesive layer 3 and the PET film 1 is zero; when the thickness of the coating is more than 3 μm, the cost of the precoat layer 2 is increased while allowing the weather-resistant adhesive layer 3 to easily slide and shift on the PET film 1, increasing the risk of signal transmission and poor contact of the FFC wire conductor. Specifically, the preferred thickness of the precoat layer 2 is 1 μm.
Furthermore, the thickness of the weather-resistant glue layer 3 is 15 to 32 μm.
The thickness range of the weather-resistant adhesive layer 3 is 15-32 mu m, when the coating thickness is less than 15 mu m, the powder base layer is too thin, and the flame retardant property, weather resistance and pressure resistance of the weather-resistant adhesive layer 3 are weakened; when the thickness of the weather-resistant adhesive layer 3 is larger than 32 μm, the cost of the weather-resistant adhesive layer 3 increases, and problems such as particles, scratches, and skinning are likely to occur during coating.
Further, the thickness of the high-viscosity metal adhesive layer 4 is 4 to 8 μm.
The thickness range of the high-viscosity metal adhesive layer 4 is 4-8 microns, and when the coating thickness is less than 4 microns, the viscosity metal force of the high-viscosity metal adhesive layer 4 cannot meet the product requirement; when the coating thickness is more than 8 μm, the high-adhesion metal adhesive layer 4 may cause an adhesive overflow problem.
Further, the thickness of the PET film 1 is in the range of 12 to 40 μm.
The thickness range of the PET film 1 is 12-40 mu m, when the coating thickness is less than 12 mu m, the PET film 1 is easy to tear and wrinkle, the thickness stability of glue layer coating is influenced, and the problem of poor function of a glue film product area is caused; when the thickness of the coating is more than 40 μm, a cost rise is caused. Specifically, the preferred thickness of the PET film 1 is 25 μm.
Further, the thickness of the polyester film 5 is in a range of 12 to 40 μm.
The thickness range of the polyester film 5 is 12-40 mu m, when the coating thickness is less than 12 mu m, the polyester film 5 is easy to tear, the protection on the high-viscosity metal adhesive layer 4 is too poor, the thickness stability of the adhesive layer coating is affected, and the problem of poor function of the adhesive film product area is caused; when the thickness of the coating is more than 40 μm, a cost rise is caused. Specifically, the preferable thickness of the polyester film 5 is 30 μm.
More specifically, the thickness of the weather-resistant adhesive layer 3 is 25 μm.
The optimal thickness of the weather-resistant glue layer 3 is 25 μm. At the moment, the viscocity property of the weather-resistant glue layer 3 is more than or equal to 26g/0.3mm, the viscocity property is still more than 26g/0.3mm in a 60-minute test by setting the temperature of 150 ℃ and the humidity of 80% in a high-temperature high-humidity box, and the weather resistance is good; and setting the temperature of 150 ℃ and the humidity of 80% in a high-temperature high-humidity box, and placing the high-temperature high-humidity box under the load of 250g for 60 minutes to test, wherein the transverse shrinkage rate is +/-1%, the longitudinal shrinkage rate is less than 2%, and the weather resistance is strong.
Further, the thickness of the high-viscosity metal adhesive layer 4 is 6 μm.
The optimal thickness of the high-viscosity metal adhesive layer 4 is 6 μm. At this time, the viscous metal property of the high-viscosity metal adhesive layer 4 is more than or equal to 45g/0.3mm, and the adhesive layer has the strongest viscous metal force under the condition of not increasing the cost.
The FFC wire material using the high-viscosity hot-melt adhesive film with good weather resistance comprises the FFC wire material and the high-viscosity hot-melt adhesive film with good weather resistance, wherein after the polyester film 5 is peeled off, the high-viscosity metal adhesive layer 4 is adhered to the outer surface of the FFC wire material.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The high-viscosity hot melt adhesive film with good weather resistance is characterized in that: including PET film, precoating, resistant glue film of waiting, high metal power glue film and polyester film, the upper surface coating of PET film has the precoating, the upper surface coating of precoating has resistant glue film of waiting, resistant glue film's upper surface coating has high metal power glue film of waiting, the upper surface coating of high metal power glue film has polyester film.
2. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the PET film is a high-temperature-resistant PET film, and the service temperature range of the high-temperature-resistant PET film is-30-200 ℃.
3. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the thickness range of the precoating layer is 0.5-3 mu m.
4. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the thickness range of the weather-resistant glue layer is 15-32 mu m.
5. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the thickness range of the high-viscosity metal adhesive layer is 4-8 mu m.
6. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the thickness range of the PET film is 12-40 mu m.
7. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 1, wherein: the thickness range of the polyester film is 12-40 mu m.
8. The high-viscosity hot-melt adhesive film with good weather resistance as claimed in claim 4, wherein: the thickness of the weather-resistant glue layer is 25 mu m.
9. The hot melt adhesive film with good weather resistance and high viscosity as claimed in claim 5, wherein: the thickness of the high-viscosity metal adhesive layer is 6 microns.
10. An FFC wire using the weather-resistant high-viscosity hot-melt adhesive film according to any one of claims 1 to 9, wherein: the hot melt adhesive comprises an FFC wire and a high-viscosity hot melt adhesive film with good weather resistance, wherein after the polyester film is peeled off, the high-viscosity metal adhesive layer is adhered to the outer surface of the FFC wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220474.1U CN210340750U (en) | 2019-07-29 | 2019-07-29 | High-viscosity hot melt adhesive film with good weather resistance and FFC wire rod using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921220474.1U CN210340750U (en) | 2019-07-29 | 2019-07-29 | High-viscosity hot melt adhesive film with good weather resistance and FFC wire rod using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210340750U true CN210340750U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921220474.1U Active CN210340750U (en) | 2019-07-29 | 2019-07-29 | High-viscosity hot melt adhesive film with good weather resistance and FFC wire rod using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210340750U (en) |
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2019
- 2019-07-29 CN CN201921220474.1U patent/CN210340750U/en active Active
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